A buyer persona is a detailed profile of a specific individual involved in a purchase, covering their role, goals, pains, and how they make decisions. Where an ideal customer profile describes the target company, a persona describes the people inside it. Personas make messaging specific to the humans who actually decide.

An ICP tells you which companies to target; a persona tells you what the person inside them actually cares about. The two are different tools, and confusing them produces messaging aimed at a company rather than a human. A useful persona is grounded in real conversations with real buyers, not invented demographics, or it just encodes your assumptions.

Example:

The ICP is a founder-led B2B firm at a certain size. The persona is the founder themselves: what keeps them up at night, how they judge a provider, what makes them say no.

What is the difference between a buyer persona and an ICP?

An ICP describes the ideal target company. A buyer persona describes an individual person within it, including their goals, pains, and decision-making.

How do you build a useful buyer persona?

Ground it in real conversations with actual buyers, not invented demographics. Otherwise it simply encodes your assumptions rather than reflecting real behavior.